Five points of fly culture

The necessary condition of fly maggot culture temperature is the necessary condition of fly maggot culture.

Below 20 ℃, the fly stops breeding or goes into hibernation and does not eat. The plastic shed can only be cultivated seasonally, and the temperature in late autumn, severe winter and early spring can not meet the requirements, so it is futile to breed in the shed.

The feed for the production of fly maggots must be cheap waste, preferably chicken manure produced by professional chicken farmers. According to 3 jin of chicken manure out of 1 jin of maggots, a lot of feed is needed for productive breeding. If you buy soy sauce dregs, bean curd dregs or other wastes, the cost is too high and the losses often outweigh the gain.

Self-elimination ability for productive breeding of fly maggots is best for poultry and fish farming professionals, which can be produced and sold by themselves, which can be used to reduce the feed cost of poultry and fish and improve economic benefits.

The selection of breeding sites for maggot breeding is to a large extent unhygienic. Therefore, the following points should be paid attention to when choosing breeding sites:

Away from residential areas, chicken droppings or other wastes accumulate in the hospital, and adult flies enter the house and crawl, affecting human health.

Pay attention to the perennial wind direction, we should pay attention to the local perennial dominant wind direction, and set the maggot breeding farm on the downwind side of the chicken farm, so as to prevent the stench from drifting into the breeding room and chicken house, affecting the healthy growth of breeders and chickens.

Away from water sources, maggot farms must stay away from self-provided water sources and public water sources, so as to prevent sewage from seeping into the ground, resulting in deterioration of water quality and affecting the water use of chickens.

The productive breeding site of fly maggots in the waste dump must have a special site for the stacking of chicken manure and maggot breeding waste to prevent environmental pollution.

The construction of the breeding room and shed the area of the greenhouse and shed is calculated as 1 square meter for every 1 kg of maggots produced. Too large rooms and sheds are not conducive to heat preservation, and too small can not guarantee the output. This is a difficult problem in maggot breeding, and it involves investment. Funds are allowed to build cold-proof greenhouses for perennial breeding; insufficient funds can be used for seasonal breeding in large sheds. Simple outdoor aquaculture is affected by air temperature and Rain Water. The breeding time is longer in the south and shorter in the north. This way of aquaculture can not guarantee the yield, but also hinder the environmental hygiene, so it should not be advocated. The construction of productive breeding shed should pay attention to the following points:

Cold protection and heat preservation in order to ensure that the temperature in the shed is above 25 ℃, the walls should have a certain thickness, the doors and windows should be tight, and the room should have heating and temperature-regulating facilities. The temperature of plastic shed is too high in summer season, and it is difficult to reach 25 ℃ in cold season, so it is not suitable for breeding.

Rain protection and sun shelter breeding in the shed should pay attention to rain protection, so as not to damage the maggot culture environment. In the midsummer season, we should also pay attention to avoid sun exposure to prevent maggot feed from drying and causing maggots to die.

The specific structure, scale and shape of rooms and sheds can be adjusted to local conditions and do not have to be forced to be consistent.

Productive culture management of fly maggots productive culture management can be divided into two parts: inducing flies to lay eggs and maggot growth.

Because of the instinct of safe hatching, female flies often lay eggs in places full of nutrients or in sheltered places. To master this habit of female flies, containers such as plastic square plates and canned bottles can be used to put nutrients (meat bones, residual soup dregs, fish viscera, watermelon bran, wheat bran, sugar and other wastes) in a shelter to induce flies to spawn, and when eggs hatch into maggots, they can be moved into chicken feces to let them grow.

In the feeding and management of maggots in the process of growing, it is necessary to master the habit of no longer feeding maggots when they are mature, begin to crawl into the soil for pupation, and collect or fish maggots in time.

Fly maggot feeding can be divided into dry type and wet type. Dry feeding is to spread chicken manure on plastic sheeting or cement floor, 80 cm wide, 10-15 cm high and unlimited in length. After the fly eggs or hatched young maggots are moved and sprinkled with water to maintain a certain humidity, the eggs or young maggots can hatch and grow. Wet feeding is to build an impermeable pool with a depth of 30 cm, a width of 60-80 cm and an unlimited length in the room and shed, release water in the pool, stir the chicken manure into a thick pulp, move it into fly eggs, and then hatch into maggots and grow. No matter dry or wet feeding, maggots should clean up maggot droppings in time and replace new chicken droppings regularly to increase production.

Maggots collected or salvaged should be scalded to death in hot water in time, then taken out and dried (baked), or directly mixed into corn crushed feed and fed in time. Wet maggots mixed into the corn flour should not be kept for a long time to avoid mildew and deterioration.

The daily output of fly maggots is large, and the moisture should be controlled after drying so that it can be preserved for a long time. When processing maggots, it is necessary to pick out rotten and deteriorated dead maggots so as not to affect the quality of maggot powder.